By Husain Parvez
Low quantity construction of FPGA-based items is sort of powerful and cost-efficient simply because they're effortless to layout and software within the shortest period of time. The time-honored reconfigurable assets in an FPGA will be programmed to execute a large choice of functions at at the same time specific occasions. even though, the pliability of FPGAs makes them a lot better, slower, and extra strength eating than their counterpart ASICs. accordingly, FPGAs are wrong for purposes requiring excessive quantity construction, excessive functionality or low energy consumption.
This ebook offers a brand new exploration surroundings for mesh-based, heterogeneous FPGA architectures. It describes cutting-edge suggestions for lowering region standards in FPGA architectures, which additionally bring up functionality and let aid in energy required. insurance makes a speciality of aid of FPGA region by way of introducing heterogeneous hard-blocks (such as multipliers, adders and so on) in FPGAs, and by way of designing program particular FPGAs. automated FPGA format iteration suggestions are hired to diminish non-recurring engineering (NRE) expenditures and time-to-market of application-specific, heterogeneous FPGA architectures.
- Presents a brand new exploration surroundings for mesh-based, heterogeneous FPGA architectures;
- Describes cutting-edge options for decreasing quarter necessities in FPGA architectures;
- Enables aid in strength required and raise in performance.
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Extra info for Application-Specific Mesh-based Heterogeneous FPGA Architectures
Tierlogic [TIERLOGIC, 2010] is a recently launched FPGA vendor that offers 3D SRAM-based TierFPGA devices for prototyping and early production. The same design solution can be frozen to a TierASIC device with one low-NRE custom mask for error-free transition to an ASIC implementation. The SRAM layer is placed on an upper 3D layer of TierFPGA. Once the TierFPGA design is frozen, the bitstream information is used to create a single custom mask metal layer that will replace the SRAM programming layer.
After synthesis and packing, PARSER-2 will add all the removed hard-blocks in the netlist. 5 shows ﬁve different modiﬁcations performed by PARSER-1 before removing hardblock instances from the BLIF ﬁle. These cases are described as below : 1. 5(a) shows a hard-block whose output pins are connected to the input pins of gates. All the output pins of hard-block are detached from the input pins of gates. 5(b). 2. 5(d)). This is because, when hard-block is removed, these main circuit outputs do not remain stranded.
Ding, 2000]. The ﬁnal output of FPGA technology mapping is a network of I/Os, LUTs and Flip-Flops. Packing : A mesh-based FPGA consists of an array of Conﬁgurable Logic Blocks (CLBs). Each CLB consists of a cluster of Basic Logic Elements (BLEs). A BLE consists of a Look-Up Table and a Flip-Flop. The packing phase, also called as clustering phase groups a Look-Up Table and a Flip-Flop in a BLE, and groups different BLEs into a cluster of BLEs. These BLEs or clusters of BLEs can then be directly mapped on the CLBs of an FPGA.